Apple Watch Series 7 (41mm) vs Apple Watch Series 7 (45mm) Specs Comparison

Display

Resolution
448 x 368 px	448 x 368 px
Technology
OLED	OLED

Hardware

System chip
Apple S7	Apple S7
Processor
Dual-core	Dual-core
GPU
PowerVR	PowerVR
RAM
1GB	1GB
Internal storage
32GB, not expandable	32GB, not expandable
OS
watchOS (9.x, 8.x)	watchOS (9.x, 8.x)
Device type
Smartwatch	Smartwatch

Battery

Type
Li - Ion, Not user replaceable	Li - Ion, Not user replaceable
Charging
Qi wireless charging	Qi wireless charging

Camera

Design

Weight
1.13 oz(32.0 g)	1.34 oz(38.0 g)
Materials
Back: Aluminum	Back: Aluminum
Resistance
Water, Dust; IP6X	Water, Dust; IP6X
Colors
Midnight, Starlight, Green, Blue, Red	Midnight, Starlight, Green, Blue, Red

Cellular

3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM	eSIM

Multimedia

Speakers
Loudspeaker	Loudspeaker
Additional microphone(s)
Yes	Yes

Connectivity & Features

Bluetooth
5.0	5.0
Wi-Fi
802.11 b,g,n	802.11 b,g,n
Location
A-GPS, Glonass, Galileo, BeiDou, QZSS	A-GPS, Glonass, Galileo, BeiDou, QZSS
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Blood Oxygen	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Blood Oxygen

Availability

Officially announced
Sep 14, 2021	Sep 14, 2021

Alternative variants

With Stainless Steel case

Weight	1.49 oz(42.3 g)
Materials	Back: Stainless steel
Colors	Graphite, Silver, Gold

With Stainless Steel case

Weight	1.82 oz(51.5 g)
Materials	Back: Stainless steel

With Titanium case

Weight	1.31 oz(37.0 g)

With titanium case

Weight	1.59 oz(45.1 g)
Materials	Back: Titanium

Links

Full specifications
Apple Watch Series 7 (41mm) Specs	Apple Watch Series 7 (45mm) Specs
PhoneArena Review
	Apple Watch Series 7 (45mm) Review